yes,an electron is a univerrsal constituent of atom because an atom is mainly consist of neutron, proton and electron. proton and electron are in the nucleus where as electrons are around nucleus.
If by universal you mean fundamental (no particle smaller), then it would be the electron. Please note, however, that the electron is not the only fundamental particle.
The electron is part of the family of particles called "Leptons", of which there are six not counting their antimatter counterparts.
Protons are made up of the family of particles called "Quarks". There are six quarks total, not counting their antimatter counterparts. Any particles made up of quarks are called Hadrons, if there are three quarks, or Mesons, if it is a quark-antiquark pair.
There is another family called Gauge Bosons, the fundamental force carriers. These mediate the four fundamental forces and are also fundamental particles.
Each family of particles has defining characteristics that can be found with additional research.
because values of charge and mass of electron remains constant whatever may be the material.
the proton, the neutron, and the electron
The electron.
electron-negative, proton-positive, neutron-neutral
The negatively charged subatomic particle that moves around the nucleus is the electron. The proton, along with the neutron, comprises the nucleus.
The electron is the lightest particle in the list. A proton is 1836 times more massive than an electron. Neutrons are just slightly more massive than a proton, and an alpha particle consists of two protons and two neutrons.
This particle is the electron with the electrical charge -1.
Electron!
Proton has a greater mass than the electron.
the proton, the neutron, and the electron
The electron.
Proton is a positive particle and electron is a negative particle.
This means that the proton is known to be made up of smaller particles; the electron not.
There are three atomic particles with mass, the proton, neutron and electron. Of these three, the proton is the particle with a positive charge.
An electron
The positively charged particle in an atom is the proton. The negatively charged particle is the electron. The electrically neutral particle is the neutron.
electron 9.11X10-28g then proton with 1.67X10-24g then alpha particle with four times the mass of a proton
electron-negative, proton-positive, neutron-neutral